4,5,6,7-Tetrahydro-1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester

Speranza Chemical Co., Ltd. is a professional manufacturer of Fine Chemicals locating in Handan Chemical Industry Zone, Hebei province with total invested of $12 million and area of 80,000 m2. We focus on production of Phenylurea, 5-Chlorovaleryl chloride, Fluorinated Benzoic Acids and Pharma intermediates for New API such as Revefenacin, Bempedoic Acid, etc. Quality is our Culture and our Promise to our customers all over the world! From raw material purchasing to production progress, finish product testing and Packing, we insist to doing tracing and Quality control for each single step just to realize our promise and to be your trustworthy partner in China! Beyond competence products, we also do 7 X 24 hours After Sales Service! Speranza Chemical, Always getting better for our Customers and our Life!